Size, connections and transport to the city vary a lot between Bulgaria's airports. Here is the comparison.
Airports
- SOF Sofia
- VAR Varna
- BOJ Burgas
Get online at the airport
Install a MerrSIM eSIM for Bulgaria (from €1.99, 10 GB €9.99) before departure and you’re online the moment you land at Sofia Airport — no WiFi hunt, no roaming.
How much data you really need
For normal use — maps, messaging, social media and the odd video — budget about 300–700 MB a day. A light traveller is fine with 3–5 GB for a week, while anyone doing video calls, streaming or laptop hotspot will want 10–20 GB. In Bulgaria, download offline maps and use hotel WiFi for big downloads; that way a 10 GB plan comfortably lasts two weeks. If you run out, you buy a new plan in the app with no waiting.
Coverage and 5G speed in Bulgaria
The eSIM connects to the main local operators, so you get the same coverage as a local, including 4G/LTE and 5G where available. In the cities and tourist areas of Bulgaria the signal is strong and stable; in very remote villages or mountains it can weaken, as with any operator. Hotspot is included, so you can share the connection with your laptop or a travel companion at no extra cost.
How an eSIM works
An eSIM is a digital SIM built into your phone: there is no physical card to insert. You buy it online, get a QR code by email and scan it in your settings. Once installed, the profile lives on your phone and activates when you reach Bulgaria, connecting automatically to a local partner network. You can keep your main SIM at the same time, so your number still gets calls and texts while the eSIM handles data.
eSIM versus roaming
Roaming with your home carrier can be expensive outside bundles — sometimes several euros per gigabyte, with bills that land after the trip. A local eSIM turns that into a fixed price you know up front: you pay in advance, you know exactly how many GB you have, and there are no hidden fees. For a trip to Bulgaria, that means peace of mind and often a real saving compared with leaving roaming switched on unchecked.
No registration, no shop queue
Many EU countries require identity verification for local SIM cards, which means a queue, a shop and sometimes even a local address. A travel eSIM skips all of that: it is sold as an international data service, with no passport and no contract. You have it ready before you set off for Bulgaria, so you land and are online immediately — no time wasted at the airport and no risk of surprise roaming bills.